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Related papers: Satellites around massive galaxies since z~2

200 papers

abridged: We use a complete sample of about 140,000 galaxies from the Sloan Digital Sky Survey (SDSS) to study the size distribution of galaxies and its dependence on their luminosity, stellar mass, and morphological type. The large SDSS…

We present a detailed analysis of the stellar mass content of galaxies up to z=2.5 in the K20 galaxy sample, that has a 92% spectroscopic completeness and a complete $UBVRIzJK_s$ multicolor coverage. We find that the M/L ratio decreases…

We explore the rate and impact of galaxy mergers on the massive galaxy population using the amplitude of the two-point correlation function on small scales for M > 5e10 M_sun galaxies from the COSMOS and COMBO-17 surveys. Using a pair…

Making use of public spectra from Cimatti et al (2008), we measure for the first time the velocity dispersion of spheroid-like massive (M_star ~ 10^11 M_sun) galaxies at z ~ 1.6. By comparing with galaxies of similar stellar mass at lower…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 A. Javier Cenarro , Ignacio Trujillo

Using mass-selected galaxy samples from deep multiwavelength data we investigate the incidence of close galaxy pairs between z=0.4-2. Many such close pairs will eventually merge, and the pair fraction is therefore related to the merger…

Astrophysics of Galaxies · Physics 2011-08-29 Rik J. Williams , Ryan F. Quadri , Marijn Franx

We set out to quantify the number density of quiescent massive compact galaxies at intermediate redshifts. We determine structural parameters based on i-band imaging using the CFHT equatorial SDSS Stripe 82 (CS82) survey (~170 sq. degrees)…

In this paper we study a key phase in the formation of massive galaxies: the transition of star forming galaxies into massive (M_stars~10^11 Msun), compact (r_e~1 kpc) quiescent galaxies, which takes place from z~3 to z~1.5. We use HST…

Matsuoka & Kawara (2010) showed that the number density of the most massive galaxies (log M/M_sun=11.5-12.0) increases faster than that of the next massive group (log M/M_sun=11.0-11.5) during 0 < z < 1. This appears to be in contradiction…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Jaehyun Lee , Sukyoung K. Yi

The long term time evolution of tidal dwarf satellite galaxies with two different initial densities orbiting a host galaxy that resembles the Milky Way has been studied using a large set of Newtonian N-Body simulations. From the simulations…

Astrophysics of Galaxies · Physics 2016-02-11 R. A. Casas , V. Arias , K. Pena Ramírez , P. Kroupa

There is cumulative evidence showing that, for the most massive galaxies, the fraction of disk-like objects compared to those with spheroidal properties increases with redshift. However, this evolution is thus far based on the surface…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Fernando Buitrago , Christopher J. Conselice , Benoit Epinat , Alejandro G. Bedregal , Ruth Grutzbauch , Benjamin J. Weiner

The population of compact massive galaxies observed at z > 1 are hypothesised, both observationally and in simulations, to be merger remnants of gas-rich disc galaxies. To probe such a scenario we analyse a sample of 12 gas-rich and active…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 E. Ricciardelli , I. Trujillo , F. Buitrago , C. J. Conselice

To study the accretion phase for local massive galaxies, we search accreting satellites around a massive compact galaxy (M_*~3.9x10^10Msun), spectroscopically confirmed (z_spec-1.9213) in the eXtreme Deep Field, which has been originally…

Astrophysics of Galaxies · Physics 2016-01-27 Takahiro Morishita , Takashi Ichikawa

Galaxies are believed to be in one-to-one correspondence with simulated dark matter subhalos. We use high-resolution N-body simulations of cosmological volumes to calculate the statistical properties of subhalo (galaxy) major mergers at…

Astrophysics · Physics 2009-11-13 Andrew R. Wetzel , J. D. Cohn , Martin White

(Abridged) We study the phase-space distribution of satellite galaxies associated with late-type galaxies in the GIMIC suite of simulations. GIMIC consists of re-simulations of 5 cosmologically representative regions from the Millennium…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 A. J. Deason , I. G. McCarthy , A. S. Font , N. W. Evans , C. S. Frenk , V. Belokurov , N. I. Libeskind , R. A. Crain , T. Theuns

We search for massive and compact galaxies (superdense galaxies, hereafter SDGs) at z=0.03-0.11 in the Padova-Millennium Galaxy and Group Catalogue, a spectroscopically complete sample representative of the local Universe general field…

Gravitational lenses with anomalous flux ratios are often cited as possible evidence for dark matter satellites predicted by simulations of hierarchical merging in cold dark matter cosmogonies. We show that the fraction of quads with…

Astrophysics · Physics 2009-11-13 E. M. Shin , N. W. Evans

We investigate the incidence of major mergers creating >10e11 Msun galaxies in present-day groups and clusters more massive than 2.5e13 Msun. We identify 38 pairs of massive galaxies with mutual tidal interaction signatures selected from…

The properties of dwarf galaxies orbiting the Milky Way (MW) are useful for testing models of the formation of our Galaxy, and by extension various theories of cosmology. Recent efforts to measure the masses of the MW's satellite dwarf…

Astrophysics of Galaxies · Physics 2025-12-12 Thomas Donlon , Sukanya Chakrabarti , Jason A. S. Hunt

We study the statistical properties of mergers between central and satellite galaxies in galaxy clusters in the redshift range $0<z<1$, using a sample of dark-matter only cosmological N-body simulations from Le SBARBINE dataset. Using a…

Astrophysics of Galaxies · Physics 2018-02-14 Carlo Nipoti , Carlo Giocoli , Giulia Despali

We measure the gravitational lensing signal around satellite galaxies in a sample of galaxy clusters at $z<0.15$ by combining high-quality imaging data from the Canada-France-Hawaii Telescope with a large sample of…

Astrophysics of Galaxies · Physics 2018-05-18 Cristóbal Sifón , Ricardo Herbonnet , Henk Hoekstra , Remco F. J. van der Burg , Massimo Viola